4/x + 3 – 5/x – 1

4/x + 3 – 5/x – 1

Jawaban

 = [4 (x – 1) – 5(x + 3)] / [(x + 3) (x – 1)]

= (4x – 4 – 5x – 15) / (x2 – x + 3x – 3)

= (-x – 19) / (x2 + 2x – 3)